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SSC IMD Scientific Assistant Electronics Previous Questions 261 to 280

Hi students, Welcome to Amans Maths Blogs (AMBIPi). Are you preparing for SSC Scientific Assistant and looking for SSC Scientific Assistant Electronics Questions 261 to 280 with Answer Keys? In this article, you will get previous year questions of SSC Scientific Assistant IMD (Indian Meteorological Department), which helps you in the preparation of government job of SSC IMD Scientific assistant.

SSC Scientific Assistant IMD Previous Year Questions

Scientific Assistant Electronics Question No: 261

What is the frequency range of VHF in electromagnetic spectrum ?

Option A : 30 MHz to 300 MHz

Option B : 3 GHz to 30 GHz

Option C : 30 GHz to 300 GHz

Option D : 3 MHz to 30 MHz

Option A : 30 MHz to 300 MHz

Scientific Assistant Electronics Question No: 262

Waveguides are employed as a transmission lines for propagation of

Option A : Analog Signals

Option B : Digital Signals

Option C : Line Signals

Option D : Microwave Signals

Option D : Microwave Signals

Scientific Assistant Electronics Previous Year Question No: 263

What is the frequency range of UHF signals ?

Option A : 3 MHz to 30 MHz

Option B : 25 MHz to 3 GHz

Option C : 300 MHz to 3 GHz

Option D : 300 kHz to 3 MHz

Option C : 300 MHz to 3 GHz

Scientific Assistant Electronics Question No: 264

What is the function of transmitter in a communication system ?

Option A : Provides the information

Option B : Processes the information

Option C : Modulates the signal

Option D : Rectify the input signal

Option B : Processes the information

Scientific Assistant Electronics Question Paper No: 265

Noise is measured in ______

Option A : Decibel

Option B : Mel

Option C : Phon

Option D : Zone

Option A : Decibel

Scientific Assistant Electronics Question No: 266

Correlation receiver and phase locked loop are used in  ______

Option A : FSK reception

Option B : PSK reception

Option D : Both ASK and PSK

Option A : FSK reception

Scientific Assistant Electronics Question No: 267

Which of the following modulating techniques requires minimum bandwidth ?

Option A : Delta modulation

Option B : PCM

Option C : PAM

Option D : DPCM

Option A : Delta modulation

Scientific Assistant Electronics Question Paper No: 268

Which of the following is not used for the demodulation of SSB ?

Option A : Product demodulator

Option B : Diode balanced modulator

Option C : Complete phase shift generator

Option D : Bipolar transistor balanced modulator

Option D : North−Western

Scientific Assistant Electronics Question Paper No: 269

Which of the following block is present in AM but present in FM recievers?

Option A : RF amplifier

Option B : Slope detector

Option C : IF amplifier

Option D : Mixer

Option B : Slope detector

Previous Year Question Scientific Assistant Electronics: 270

Attenuation per unit length is coaxial cable with frequency ______

Option A : Increases

Option B : Decreases

Option C : Remains constant

Option D : Becomes zero

Option A : Increases

Scientific Assistant Electronics Question No: 271

Nyquist interval rate for  the signal x (t) = cos c (2000t) + cos c (500t) , is ______

Option A : 700 Hz

Option B : 1400 Hz

Option C : 5 kHz

Option D : 4 kHz

Option D : 4 KhZ

Scientific Assistant Electronics Question No: 272

Which of these are a digital modulation techniques ?

Option B : PAM

Option C : FM

Option D : PCM

Option D : PCM

Scientific Assistant Electronics Question No: 273

Which of the following is NOT correct when referring to AM and FM ?

Option A : FM is more susceptible to noise as compared to AM

Option B : AM can transmit at longer distance as compared to FM

Option C : Phase remains constant in AM

Option D : FM signal has higher bandwidth than AM

Option B : AM can transmit at longer distance as compared to FM

Scientific Assistant Electronics Question No: 274

Option A : Crystal oscillator

Option B : Hartley oscillator

Option C : RC-phase shift oscillator

Option D : Wein bridge oscillator

Option B : Hartley oscillator

Scientific Assistant Electronics Question Paper No: 275

Audio and video signal in the television in the broadcast is done by______.

Option A : Amplitude and Frequency modulation

Option B : Phase and amplitude modulation

Option C : Frequency and angle modulation

Option D : Both by frequency modulation

Option A : Amplitude and Frequency modulation

Scientific Assistant Electronics Question No: 276

Which among the following is/are the advantages of the digital communication ?

Option A : Simple multiplexing

Option B : Reliable

Option C : Easy processing

Option D : All of these

Option D : All of these

Scientific Assistant Electronics Question No: 277

Which among the given expression is the Product of the Sum form?

Option A : (b+c)(a+b)

Option B : ac-bd

Option C : ab+cd

Option D : ab(cd)

Option A : (b+c)(a+b)

Scientific Assistant Electronics Question Paper No: 278

The distributor law of Boolean algebra states:

Option A : AB + AB

Option B : (AB)C = A(BC)

Option C : A+(BC) = (A+B)(A+C)

Option D : AB = BA

Option C  : A+(BC) = (A+B)(A+C)

Scientific Assistant Electronics Question Paper No: 279

The Boolean expressions AB + ABC equals ?

Option A : BC

Option B : ABC

Option C : ABC + BC

Option D : AB

Option D : AB

Previous Year Question Scientific Assistant Electronics: 280

Calculate the baud rate of the ASK signal and having a bit rate of 300 bps.

Option A : 100

Option B : 250

Option C : 300

Option D : 75

Option C : 300

Get SSC Scientific Assistant Previous Year Questions.

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